Xanthium vs family Asteraceae

Xanthium and family Asteraceae both are nouns.

Word	Noun	Adjective	Verb	Adverb
Xanthium	Yes	No	No	No
family Asteraceae	Yes	No	No	No

Xanthium (noun)	family Asteraceae (noun)
coarse herbs having small heads of greenish flowers followed by burrs with hooked bristles	plants with heads composed of many florets: aster, daisy, dandelion, goldenrod, marigold, lettuces, ragweed, sunflower, thistle, zinnia